@article{MAN_1951__123_160249,
     author = {P. Lorenzen},
     title = {\"Uber endliche {Mengen.}},
     journal = {Mathematische Annalen},
     pages = {331--338},
     year = {1951},
     volume = {123},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1951__123_160249/}
}